1. ATP (Adenosine Triphosphate): This is the primary energy currency of the cell. One molecule of ATP is produced per turn of the Krebs cycle.
2. NADH (Nicotinamide Adenine Dinucleotide, reduced form): This is an electron carrier that is used in the electron transport chain to generate even more ATP. Three molecules of NADH are produced per turn of the Krebs cycle.
3. FADH2 (Flavin Adenine Dinucleotide, reduced form): Another electron carrier used in the electron transport chain. One molecule of FADH2 is produced per turn of the Krebs cycle.
4. CO2 (Carbon Dioxide): Two molecules of CO2 are produced per turn of the Krebs cycle. This is a waste product that is exhaled from the body.
5. Intermediates: The Krebs cycle also produces several intermediates, which are molecules that can be used in other metabolic pathways. These include:
* Citrate: The starting molecule of the Krebs cycle.
* Isocitrate: A key intermediate in the cycle.
* α-Ketoglutarate: Another important intermediate.
* Succinyl CoA: An intermediate that is used in the production of heme.
* Fumarate: An intermediate used in the urea cycle.
* Malate: An intermediate that is used in the production of glucose.
Overall, the Krebs cycle plays a crucial role in cellular respiration by producing ATP, electron carriers, and essential intermediates for other metabolic processes.
